Have a personal or library account? Click to login
Helminth parasites infecting feral pigeons (Columba livia) in Al Ain City, United Arab Emirates Cover

Helminth parasites infecting feral pigeons (Columba livia) in Al Ain City, United Arab Emirates

Open Access
|Feb 2026

Figures & Tables

Fig. 1.

Intestinal tract from Columbia livia collected in Al Ain, UAE. A – upper intestine showing cestode infection (yellowish white); B – opened upper intestine displaying cestodes; C – cestodes recovered from a heavily infected C. livia
Intestinal tract from Columbia livia collected in Al Ain, UAE. A – upper intestine showing cestode infection (yellowish white); B – opened upper intestine displaying cestodes; C – cestodes recovered from a heavily infected C. livia

Fig. 2.

Light micrographs of Cotugnia digonopora specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B – immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)
Light micrographs of Cotugnia digonopora specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B – immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)

Fig. 3.

Light micrographs of Raillietina echinobothrida specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B –immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)
Light micrographs of Raillietina echinobothrida specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B –immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)

Fig. 4.

Light micrographs of Raillietina tetragona specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B – immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)
Light micrographs of Raillietina tetragona specimens obtained from Columbia livia in Al Ain, UAE. A – scolex (100×); B – immature proglottid series (100×); C – mature proglottids (100×); D – gravid proglottids (100×); E – eggs (400×)

Fig. 5.

Light micrographs of Ascaridia galli specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – male posterior end (120×); C – female posterior end (300×); D – uterus containing eggs (1,200×)
Light micrographs of Ascaridia galli specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – male posterior end (120×); C – female posterior end (300×); D – uterus containing eggs (1,200×)

Fig. 6.

Light micrographs of Dispharagus nasutus specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – female posterior end (300×); C – uterus filled with eggs (300×); D – eggs (1,200×)
Light micrographs of Dispharagus nasutus specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – female posterior end (300×); C – uterus filled with eggs (300×); D – eggs (1,200×)

Fig. 7.

Light micrographs of Gongylonema sp. specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – male posterior end (300×); C – female posterior end (300×); D – eggs (1,200×)
Light micrographs of Gongylonema sp. specimens obtained from Columbia livia in Al Ain, UAE. A – male and female anterior end (300×); B – male posterior end (300×); C – female posterior end (300×); D – eggs (1,200×)

Fig. 8.

Light micrographs of Brachylaima sp. specimens obtained from Columbia livia in Al Ain, UAE. A – whole mount (40×); B – anterior body (100×); C – central body (100×); D – posterior body (100×); E – eggs (400×)
Light micrographs of Brachylaima sp. specimens obtained from Columbia livia in Al Ain, UAE. A – whole mount (40×); B – anterior body (100×); C – central body (100×); D – posterior body (100×); E – eggs (400×)

Prevalence of pigeon helminth infections and comparative analysis by bird sex and lifestyle (n = 100) for sample pigeons from Al Ain between August 2023 and October 2024

Helminth speciesPrevalence (%)
Male (n = 56)Female (n = 44)χ2P-valueFeral (n = 50)Domestic (n = 50)χ2P-value
Cestoda
Raillietina echinobothrida58.954.59.30.8843015.30.3
R. tetragona10.76.83.50.516290.06
Cotugnia digonopora28.611.46.60.4281411.80.08
Trematoda
Brachylaima sp.8.90--100--
Nematoda
Ascaridia galli3.66.82.20.3642.20.3
Dispharagus nasutus02.3--02--
Gongylonema sp.1.80--20--
Overall71.465.90.40.6924624.70.001

Helminth infection parameters and infection sites identified in pigeons (n = 100) sampled in Al Ain between August 2023 and October 2024

Helminth speciesNumber of infected birdsPrevalence %Mean intensity ± SEIntensity rangeInfection site
Cestoda
Raillietina echinobothrida57574.5 ± 0.51–17Duodenum and ileum
R. tetragona993.6 ± 0.91–10Duodenum and ileum
Cotugnia digonopora21213.5 ± 0.41–8Duodenum and ileum
Trematoda
Brachylaima sp.557.4 ± 1.73–12Rectum
Nematoda
Ascaridia galli554 ± 0.62–5Ileum
Dispharagus nasutus1144Gizzard
Gongylonema sp.111818Gizzard
Overall69696.4 ± 0.31–18

Intensity of pigeon helminth infections and comparative analysis by bird sex and lifestyle (n = 100) for sample pigeons from Al Ain between August 2023 and October 2024

Helminth speciesMean intensity ± SE
Male (n = 56)Female (n = 44)tP-valueFeral (n = 50)Domestic (n = 50)tP-value
Cestoda
Raillietina echinobothrida5.2 ± 0.83.5 ± 0.51.60.0045.4 ± 0.72.1 ± 0.4–2.90.001
R. tetragona4.3 ± 1.22 ± 0.61.30.23.9 ± 0.91–1.00.2
Cotugnia digonopora3.4 ± 0.43.8 ± 0.90.040.64.1 ± 0.52.3 ± 0.7–2.30.9
Trematoda
Brachylaima sp.7.4 ± 1.7---7.4 ± 1.7---
Nematoda
Ascaridia galli4 ± 14 ± 100.54.3 ± 0.73.5 ± 1.5-0.50.12
Dispharagus nasutus04--04--
Gongylonema sp.180--180--
Overall5.1 ± 0.83.5 ± 0.42.10.022.7 ± 0.32.3 ± 0.3–1.20.12
Language: English
Submitted on: Jun 29, 2025
|
Accepted on: Feb 2, 2026
|
Published on: Feb 24, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Yassir Sulieman, Nighat Perveen, Mohammad Ali Al-Deeb, Theerakamol Pengsakul, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution 4.0 License.

AHEAD OF PRINT